SOLUTION: Suppose C is a subset of D and D is a subset of C. If n(C) = 5, find n(D). What other relationship exists between sets C and D?

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Question 198401: Suppose C is a subset of D and D is a subset of C.
If n(C) = 5, find n(D).
What other relationship exists between sets C and D?

Answer by jim_thompson5910(21667) About Me  (Show Source):
You can put this solution on YOUR website!
If "C is a subset of D and D is a subset of C" (which is given), then the sets C and D are equal. In other words, the same number of elements are in both sets (and they share the same elements)


Since they have the same number of elements, and n(C) = 5, this means that n(D) = 5 also.